Emissions Calculations for #6 Boiler


As Submitted by Virginia Tech




SOURCE: Virginia Tech                                  LOCATION:      Blacksburg       REGISTRATION NO: 20124
EQUIPMENT: No. 6 Boiler (Spreader-Stoker Coal Boiler)
FUEL:    Coal
POLLUTANT                         TSP                 PM-10                 S02                     NOx                       CO                   VOC                     Lead

POTENTIAL UNCONTROLlED EMISIONS
Max Rated Capacity:           39 MMBtu/hr         39 MMBtu/hr            39 MMBtu/hr            39 MMBtu/hr               39 MMBtu/hr          39  MMBtu/hr             39 MMBtu/hr
                              1.44 ton/hr         1.44 ton/hr            1.44 ton/hr            1.44 ton/hr               1.44 ton/hr          1.44 ton/hr              1.44 ton/hr
Emission Factor:               60 lb/ton           12 lb/ton            39 x S lb/ton            14 lb/ton                  5 lb/ton           0.07 lb/ton            0.013lb/MMcu.ft
Reference:                  EIS SCC 10300209    EIS SCC 10300209      EIS SCC 10300209       EIS SCC 10300209          EIS SCC 10300209      EIS SCC 10300209         EIS SCC 10300209
Fuel Sulfur Content:              NA                  NA                    1.1                     NA                        NA                    NA                       NA
Operating Schedule:           8760 hrs/yr         8760 hrs/yr            8760 hrs/yr            8760 hrs/yr               8760 hrs/yr           8760 hr/yr              8760 hrs/yr
Emissions:                   86.40 lbs/hr        17.28 lbs/hr           61.78 lbs/hr            20.16 lbs/hr              7.20 lbs/hr          0.10 Lbs/hr              0.02 tbs/hr
                             378.43 tons/yr       75.69 tons/yr        270.58 tons/yr          88.30 tons/yr             31.54 tons/yr         O.44 tons/yr             0.08 tons/yr

MAXIMUM EMISSIONS
Maximum Throughput:           1.44 tons/hr        1.44 tons/hr          1.44 tons/hr           1.44 tons/hr              1.44 tons/hr         I.44 tons/hr             1.44 tons/hr
                              5501 tons/yr        5501 tons/yr          5501 tons/yr           5501 tons/yr              5501 tons/yr         5501 tons/yr             6040 tons/yr
Equiv. Capacity Factor:          43.6%               43.6%                  43.6%                  43.6%                     43.6%                43.6%                    47.9%
Uncontrolled Emissions:       86.40 lbs/hr        17.28 lbs/hr           61.78 lbs/hr           20.16 lbs/hr               7.20 lbs/hr          O.l0 lbs/hr             0.02 lbs/hr
                             165.03 tons/yr      33.006 tons/yr        118.00 tons/yr          38.507 tons/yr           13.7525 tons/yr         0.19 tons/yr            0.04 tons/yr
Control Efficiency:               88%                 40%                     0%                     0%                       0%                    0%                      88%
Control Method:               multicyclone        multicyclone               none                   none                     none                  none                 multicyclone
Controlled Emissions:         10.37 lbs/hr        10.37 lbs/hr           61.78 lbs/hr           20.16 lbs/hr              7.20 Lbs/hr           0.10 lbs/hr              O.0O lbs/hr
                             19.80 tons/yr       19.80 tons/yr          118.00 tons/yr          38.51 tons/yr            13.75 tons/yr          0.19 tons/yr             0.00 tons/yr

NSPS/PERMIT LIMITS
Emissions Limit:             0.294 Lbs/MMBtu     0.294 lbs/MMBtu         NA lbs/MMBtu           NA lbs/MMBtu             NA lbs/MMBtu            NA lbs/MMBtu           NA lbs/MMBtu

PERMITTED EMISSIONS
Reference:                     1982 Permit         1982 Permit         Emission Factors       Emission Factors          Emission Factors      No limit required      No limit required           
Emissions Limit:             0.294 lbs/MMBtu     0.294 lbs/MMBtu          61.8 lbs/hr            20.2 lbs/hr                7.2 lbs/hr         - Emissions <          - Emissions <
                               11.5 lbs/hr         11.5 lbs/hr           118.0 tons/yr           38.5 tons/yr              13.8 tons/yr          0.5 tons/yr            0.5 tons/yr
                              21.8 tons/yr        21.8 tons/yr
MODELLED EMISSIONS
Short Term:                   11.5 lbs/hr         11.5 lb/hr             61.8 lb/hr             20.2 lb/hr                 7.2 lb/hr              NA lb/hr               NA lb/hr
                               1.391  g/s           1.391 g/s             7.478 g/s              2.444  g/s                0.871 g/s               NA g/s                 NA g/s
Long Term                      5.0 lbs/hr           5.0 lb/hr             26.9 lb/hr              8.8 lb/hr                 NA lb/hr              NA lb/hr               NA lb/hr
                               0.602  g/s           0.602 g/s             3.260 g/s              l.064 g/s                   NA g/s                NA g/s                 NA g/s

Back to the Coal Page